3rd 1.404 (final drop). "Good Judgement comes from Experience. Manual Transmission Gear Ratio Chart 1 . We use cookies on this website for diverse purposes, including personalizing content and analyzing traffic. Transmission Gear Ratios and Final Drives. The effect is a constantly and actively changing torque to the rear wheels anywhere from a few percent to fully locked. [citation needed] Since the 2014 model year, the conventional automatic transmissions in North American-spec . Final 4.444:1[9]. 4th 1.000 Our Heavy Duty Transmissions have found great success in areas outside of Rock Crawling. . A forum community dedicated to Subaru Impreza GC8 and RS owners and enthusiasts. This simply means that your vehicle is equipped with an automatic transmission with four gears. Gear Ratios: 1st 3.545 2nd 1.947 3rd 1.366 4th .972 5th .780, Rev 3.416 Low Range 1.59 . Your link has been automatically embedded. (EWaoe+*ZH)h}ih1kQ Popular Automatic Transmission Identification Chart; Follow Us on Flipboard . In 2006, The STi's 6MT underwent some changes that included making the center differential a limited slip unit and a slight lengthening of some gears. : 3.636, Final Drive: 4.111 4th 0.972 1st 3.538 Thank you all, appreciate the technical info and real world experience. The chart calculates vehicle speeds based on the gear ratio, final drive ratio, and tire size. Will I see a change in mpg on the highway with the wrx trans? Automatic transmission gear ratios: 1st - 2.785 2nd - 1.545 3rd - 1.000 4th - 0.694 reverse - 2.272 final drive ratio - 4.11 Manual transmission gear ratios: 1st - 3.545 2nd - 1.947 . id like to know the same thing, but i do know that 99-05 na rs are a 4.44 besides that i dunno. This transmission was dropped in 1994 when you could only get a 4WD unit. %PDF-1.6 % 800-646-6718 . By switzman, July 1, 2013 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX. It's cool to watch the gauges, it feels more "real" than looking at a graph. JavaScript is disabled. Watch as our Heavy Duty . In addition to improving the design of the transmission over the years, Subaru has supplied other companies with CVTs, as well. Later attempts at reducing customer confusion resulted in torque split numbers being given, but these have no meaning as there is no mechanical or other device to provide a static starting point for the control unit. Final Drive 4.44:1. Skip to content. With TV1/VTD 4- and 5-speed automatic transmission: Full-time all wheel drive with 45/55 torque split front-to-rear under normal conditions.This torque split is static and is different than MPT only system in that the mechanical planetary center differential gear provides this ratio as calculated by the number of gear teeth.. https://www.rallispec.com/downloads/Transmission%20ID%20Chart_Public.pdf, You need to be a member in order to leave a comment. The STi's 6MT has undergone various changes throughout the years, but have always had a limited slip front differential with Driver Controlled Center Differential (DCCD). [4] VTD was introduced on the Alcyone SVX in 1991 and is usually found in performance models equipped with a turbocharger, along with the VDC outback and USDM 2003-2004 Legacy GT/2.5GT. Vehicles with higher power engines use a more aggressive model resulting in generally higher rear engagement. 2023 Honda HR-V vs. 2022 Subaru Crosstrek: Compare Crossovers .. 2008 Subaru Legacy price/invoice cost, specs, engines, what's new this year, photos, colors and more. A TH200-4R overdrive automatic utilizes a . The MY96+ is geared better 1-4th gear but you'll have to decide if you want 4.111(2.5RS) or 3.900(Impreza L). : 3.636, Final Drive: 4.444[11]. Subaru developed a CVT for the Subaru Justy to gain reasonable acceleration and fuel economy from its small three cylinder engine. Speedo display is from wheel speed sensors. It employs a push-belt system and comes with an optional 4WD unit that engages the rear wheels when a button on the shifter is depressed. ", http://www.rallispec.com/downloads/Transmission%20ID%20Chart_Public.pdf. Contact me if you're looking for a PTE Turbo! The Gear set-hypoid section shows the ratio. as longs as it's an L 5speed. For a better experience, please enable JavaScript in your browser before proceeding. Visit Cars.com and get the latest information, as well as detailed specs and features. According to the Subaru specs it (the RS) has a different gear split front to rear ( no 1.1:1 transfer case step) than the WRX so does not use different ring and pinions in the front diff and rear like the WRX does. Thats good to know. This calculator will provide the speed of the vehicle based on transmission gear ratio, engine RPM, tire height, and the ring gear and pinion gear ratio in the rear end axle differential housing. Comparison of the stock gear ratios and the Chalak synchro set being sold by Larry Ganz. Electro 4-Speed Automatic Transmission (E-4AT) with Front Wheel Drive (FWD) TA102AACAA: 2.785: 1.545: in 3RZ-FE, 7M-GTE, 1JZ-GE, 2JZ-GTE, and 1UZ-FE powered race vehicles. How To Build a Hot Rod How To Chassis Swap a Classic Car The first use of the 3.083 final drive ratio (Part 38100AB730) was in the 2007 Legacy GT. PRODUCTS. Whatever the front final drive is set to is irrelevant to this application because the RS rear diff and the RS tranny are still mated together. If you know the 2022 ratios ,please post them, manual trans. '03 outback limited, '01 Outback Limited, '01 Legacy L wagon, '96 Legacy Brighton wagon. Gear Ratios: 1st 3.636 2nd 2.375 (or 2.235) 3rd 1.761 (or 1.590) 4th 1.346 (or 1.137) 5th 0.971 (or 0.891) 6th 0.756 (or 0.707) Rev 3.545 (This only applies to either the 04-05 STi or the 06+ STi, not both, and not the Spec B.). GR86.org is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. The 2023 Subaru BRZ features a powerful 2.4-liter direct-injection SUBARU BOXER engine; a track-tuned suspension; a lightweight, rigid chassis; and a standard 6-speed manual transmission. Book A Free Demo. Transmission code: 1st Gear: 2nd Gear: 3rd Gear: 4th Gear: 5th Gear: FINAL: Diff Code: TY752VB1AA: 3.545: 2.111: 1.448 . AZ6 / TL70 Transmission Build Services; Mitsubishi DSM. Quick calculator gives these speeds for each gear (note . If you look in some Motor Trends they have the trans specs on some cars, and in the article I was looking at, ost cars final drives were in the mid to high 2's like 2.73/1. This torque split is static and is different than MPT only system in that the mechanical planetary center differential gear provides this ratio as calculated by the number of gear teeth. Torque Converters for High Stall Speed Transmissions. The 2015 WRX has a new 6-speed cable-shifted manual transmission behind the new FA20DIT boxer engine. The Justy ECVT was also available with hydraulically actuated 4WD (unlike the 5MT Justy, which has pneumatic actuation) in November 1988, this model was called the Justy 4WD ECVT. I like it because it includes the final drive ratio along with the years/cars they came in. does anybody know the FDR of a wrx auto tranny? Subaru motor vehicles have used manual, conventional automatic, and continuously variable transmissions. The transmission uses a cable shifter, unlike previous designs that use a direct mechanical linkage. Many peope get lazy and use the term final drive ratio for the axle ratio. This transmission is an evolution of the 5MT split-case design, and does not share any parts with the STI's 6MT transmission. Your previous content has been restored. The OTHER tranny that is nicer than all is the MY97-MY99 Legacy Outback tranny. No, there's no way of telling from the outside. Excluding the base model with a 5-speed manual transmission, the 2023 Subaru Impreza with the CVT started at . Final Drive: 4.111 (TY751VB9CA 2015-2017, TY751VB6CA 2018-2020) or 4.44, Gear Ratios are: Listed below are the PPG gear ratios for the BRZ / FRS Transmissions. [citation needed] Since the 2014 model year, the conventional automatic transmissions in North American-spec Subaru vehicles have been replaced with Lineartronic CVTs (with one exception as the BRZ). Automatic Transmission Assembly. var path = 'hr' + 'ef' + '='; Subaru . 2nd 2.060 ]pbn(\S#~):CQ"51GRD6'py^\bPUtlSM-'?`l9I;=M5(;. Anybody find info on the JDM legacy gear ratios? I just thought I would add a little clarification here about RimRockaz post. Listed below are gear ratios for the BRZ / FRS Transmissions. Dana makes no representation as to what equipment or use is appropriate for any specific vehicle. This is meant as a guide. Subaru did continue to build Kei cars with CVTs, only for sale in Japan. The codes are divided into 4 sections: 6-speed transmissions with 85mm shaft centerline spacing (such as STI), 6-speed transmissions with 75mm centerline spacing (such as newer Legacy manual transmissions), 5-speed transmissions from turbo models (such as WRX), and 5-speed transmissions from normally aspirated models. Every WRX is equipped with legendary Subaru Symmetrical All-Wheel Drive and Active Torque Vectoring. JDM Forester XT STI : Manual transmission ratio chart 5 Gear Transmissions . The chart calculates vehicle speeds based on the gear ratio, final drive ratio, and tire size. oK#OZu&4t.e\6mabm h hFT|1slL=(n93oH+.w2sN G7]!B/\#c6o="3t$f)R8Wc/1&8E}>gwS`?a++Xv>}2 m1ke#(o>>>/Filter/Standard/Length 128/O(]\r8~~~M_7q?")/P -3392/R 4/StmF/StdCF/StrF/StdCF/U(K\(gu.aP )/V 4>> endobj 7206 0 obj <>/Metadata 89 0 R/OCProperties<><><>]/ON[7227 0 R]/Order[]/RBGroups[]>>/OCGs[7227 0 R]>>/Outlines 93 0 R/PageLayout/SinglePage/Pages 7202 0 R/StructTreeRoot 100 0 R/Type/Catalog>> endobj 7207 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 7208 0 obj <>stream endstream endobj startxref if you look at http://opposedforces.com/parts you can track down the final drive ratio for your car. Compare 2005 Subaru Forester different trims: JDM Legacy. levi x nerd reader . The persistent lockup condition under acceleration provides the efficiency and control of a clutch while still behaving much like a traditional planetary automatic transmission. The Ford Motor Company also uses a transmission on some Ford, Kia Motors, Mercury, and Mazda products called the F-4EAT, which shares some similarities with the Subaru, since they are both manufactured by Jatco. Chris Walden, Copyright 1999 - 2019, North American Subaru Impreza Owners Club, Inc. http://northursalia.com/techdocs/history/history.html, http://www.plymouthbulletin.com/overoverdrive.html, http://www.dodgedart.org/press/press75a.html, Learning Gear Ratio and Final Drive Ratio, We need an "official gear ratio referrence" thread for the legacy, Gear ratios and differential ratio for 95 legacy and 95 imprezza. Here is the rallispec chart also helpful for cross referencing gearboxes: But have a question which would be the best. 19891994 Subaru Justy ECVT/Justy 4WD ECVT, SJ Forester 2.5i, Impreza WRX STi and Legacy spec. Type Rear Diff. My '83 FWD Subaru GL 5-speed with less than 1/3 the power and 5500 redline had the same drive speeds as 5th and 6th in this car. MY 96-99 Transmission specs (and possibly other years), Source: 1996 Subaru Legacy Service Manual/1999 Subaru Forester Service Manual, Also matches 1999 Legacy 30th Anniversary[7][8], 1st 3.454 TY752VB1BA 3.545 2.111 1.448 1.088 0.825 4.111 F,G (RA) TY752VB1CA 3.454 2.333 1.750 1.354 0.871 4.111 F,G (RA) TY75. they are listed under ''train'' as in drive train. B's 6MT has different gear ratios (specifically 6th gear being longer) than the STi's unit, does not have DCCD, and neither the front nor center differentials are limited slip units. All of Subaru's three speed automatic transmissions were made by Jatco. Only all wheel drive transmissions from Impreza, Legacy, Baja, Forester, and Saab 9-2X models are listed at this time. document.getElementById('cloak16db0667784c44dca0ffa44e826e5128').innerHTML = ''; The Shift Indicator reads P-R-N-D-Ds, Ds stands for Drive Sport, which doubles engine RPM. from what i remember..the fozzy in 98 was the same as the RS's.. although..i'm not sure that's correct..hold please. Menu LegacyPic Home Members' Subarus Members' Photographs Contact LegacyPic (Sign In) Subaru Information Webpages Search Specifications Search Chassis / VIN Search Applied Model List Transmission Ratios Search Transmission Type Search Engine Type Speed Calculator & Graph Engine Capacity Calculator How Many Made? Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) I found this incredibly useful chart at Rallispec. More information regarding our services will be available soon. You are correct. I wonder what the old 1.8L's ratios were? It lists gear ratios, transfer gear ratio, final drive ratio, differential types, and some other data. This transmission uses a viscous limited slip center differential with a 50/50 torque split similar to the 5MT found in previous WRX's. Find the model number sticker on the side of the trans, then find it in this chart (also in Sgt. 6th: 0.666 Monster Transmission. We adopt a very short 1st gear for off road use to work in conjunction with the shorter 1.447 low range gear. . The 2010-2014 Legacy and Outback models offer a six-speed manual as one of the two transmission options in the base 2.5i and 2.5i Premium and is the only option for the Legacy GT model. There are several six speed manual transmissions currently available for USDM Subarus, found in the STi, Legacy Spec B, and 2015 WRX. like what are all those decimal numbers? List of Subaru Transmission Types with key gear ratios. hbbd``b` 7AD`Z$ OlxzXpH `$rA3C9P{$&Ma`bc`' 9gb It is notable to mention that only Turbo vehicles received a hydraulic clutch until 1995. Rear Ends. The Fora platform includes forum software by XenForo. I am curious as to if anyone knows of a chart like this one, that lists final gear ratios of different models, but for automatic transmissions instead of manual trannys. automatic DCCD system / front axle design change . Type Subaru Gearbox Info 6MT (85mm) The gear ratios selected in this gearbox are chosen to work with the 2.5lt naturally aspirated engine. This page was last edited on 24 February 2023, at 09:28. A simple formula to calculate Gear Ratio or Axle Ratios. February 15, 2011 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX. Home > Tech Info > Transmission Gear Ratios. Subaru built their own four-speed automatic transmission based on the old Jatco design. [citation needed], 1st 3.540 We can also build / upgrade your transmission in-house. http://www.northursalia.com/techdocs/trannychart/trannychart.html. automatic DCCD on 17 in. MPG difference will be negligible. Low: 1.76: 1.82: High: 1.00: 1.00 TH350 : TH400: Lo: 2.52 : 2.48: 2: 1.52 : 1.48: 3: 1.00 : 1.00 . Sounds good, never got my head around ratio's but thats a great explanation. I have a 98 Fozzy with a blown auto. For a better experience, please enable JavaScript in your browser before proceeding. 1st 3.818 #LGTSTi is still cheaper and nicer then an equal year wrxsti. They're short. quick explanation is that the ratio of the selected gear compared to its input speeds up or slows down the speed (and inversely torque) thats fed into it. I have the rear dif to go with it so the ratios will all be the same. 5 Gear Transmissions . Subaru manufactures its own manual and CVT transmissions (for non-Kei cars). Quick Search Your Saved Searches. Transmission AY/TZ1A3ZC2AA. Paste as plain text instead, You cannot paste images directly. 3rd 1.471 in 6th its an overdrive gear (0.77:1) so you get more speed but less torque. This email address is being protected from spambots. With TV1/VTD 4- and 5-speed automatic transmission: Full-time all wheel drive with 45/55 torque split front-to-rear under normal conditions. In EU Leone turbo wagon. It runs a 4.111 AND has a shorter 5th gear ratio. Does anyone know how to determine the front or rear gearbox gear ratio? Calculate the Gear Ratio Needed to run a certain 1/4 mile. EVO 4-9 5-Speed Trans Build Services; . Subaru's are built to be AWD, Evolutions are FWD with a transfer case. First Gear Ratio (:1) 2.79. The fact that he is using a MY02 WRX engine and an RS tranny is irrelevant because he has NOT mix-n-matched trannies and rear diffs. 3rd: 1.296 2nd: 1.947 JavaScript is disabled. We may share information about your use of this site with select business partners. The chart calculates vehicle speeds based on the gear ratio, final drive ratio, and tire size. I bet that we would see much quicker times. Find a Spicer parts distributor today, or find where you can place your order now on Danas streamlined eCommerce platform, DanaAftermarket.com. Since the 1970s, all Subaru conventional automatic transmissions have been Jatco designs adapted to Subaru specifications. The control unit monitors several factors including vehicle speed, gear position, and wheel speed and then varies the application of the clutch based on a model stored in memory. ACT and VTD are found in both generations of the 4 speed while the 5 speed uses only VTD. It lists gear ratios, transfer gear ratio, final drive ratio, differential types, and some other data. . . North.. VTD adds a twin planetary center differential to the clutch and therefore has a static, starting torque split calculated on the planetary gear ratio, with the most common being 45:55. The following chart lists the final drive ratio of all combined gears (transmission, transfer case, underdrive . Late 2004 WRX STi models came without the stubs and instead had male front axles. The $24,085 starting price of the 2024 Impreza represents a price hike of $1,970. We can also build / upgrade your transmission in-house. The control unit can and does alter torque several times per second. The final use of the 3.272 final drive ratio (Part 38100AB740) was in the 2009 Legacy 3.0R Limited sedan (but not the regular R sedan), the 2009 Outback 2.5XT Limited (but not the regular XT), and the 2009 Outback 3.0R Limited (but not the regular R or LL Bean). Step 2: Select transfer case from the drop down list or, if it's not in the list and you know the gear ratios of your transfer case, enter them below. The transmission can also be manually controlled by the driver by providing the ability to select 6 or 7 (if paired with a Diesel engine[2]) or 8 different "virtual" gears, where the transmission will hold a particular ratio. Does anyone know if the 2022 BRZ will have the same ratios? Hooray for searching! For a better experience, please enable JavaScript in your browser before proceeding. "Rallispec LTD. - Subaru Gearbox Chart . Mark the raised wheel and the propeller shaft with a line (chalk, crayon, etc). If you hear any loud sounds, like clanging, banging . Experience comes from Bad Judgement". If you have an account, sign in now to post with your account. Transmission Gear Ratio Chart ~ Gear Ratios are listed for many popular transmissions. Determine your engines RPM based on the transmission gear ratio, tire height, MPH, and the ratio of your ring gear and pinion gear. Top end yo! You'll need to know the trim/model of Legacy it came out of, I believe, as the GT may be different from an L.and make sure they're not still using the Legacy Outback as a description. In addition, the metal chain pulley system is generally quieter than other CVT designs. Add to Favorites: . Shop Genuine Subaru Parts, Accessories, and Gear Rev up the performance and style of your WRX or STI with these new STI accessories! Search This gear ratio means that the output gear would only rotate 1/4 of a full rotation after the input gear has completed a full turn.Continuing in this fashion and keeping a consistent input speed, we see that the rate of the output gear is also 1/4 of that of the input . Thanks FREE SHIPPING WORLDWIDE [email protected] AUS: +61 419 243 275 . Search, Identify and Order Parts - DanaAftermarket.com. actually, the engine is in a GC8 chassis w/ wrx cross member. The gears for the 4EAT are as follows: (credit to WRXNate) Automatic transmission gear ratios: 1st - 2.785 2nd - 1.545 3rd - 1.000 4th - 0.694 reverse - 2.272 final drive ratio - 4.11 Each gear can be taken to the following MPH (Credit to BrandonWRX. Subaru Tecnica International's choice to continue using the oil pump-equipped 6MT for Group N racing, originally for the 2007 model years and older, led to the assessment that oil pump transmissions are still favored for motorsport/heavy duty applications. also regarding what the junkyard says, just got to. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not realistic. Subaru owners have complained about problems with the Lineartronic CVT transmissions[3] and Subaru extended the warranty for cars from model years 2010 to 2018. All rights reserved. 5th 0.834 I'm wondering if anyone has that info for automatics.. F.D. 2023 Dana Limited. . VJ?]%L>,=6ptd|? 6th 0.695 Content on GR86.org is generated by its users. i need to find a rear diff for my 98 L and i want to know what cars i can get a diff out of. CustomsManual transmission ratio chart, for Subaru Impreza years 1993 onwards, 5 and 6 speed boxes coveredManual . Customers who viewed this item also viewed. wheel only: TY856WB4AA . Gator's original post above). You need JavaScript enabled to view it. Overdrive is any gear that has a ratio less than 1:1, so the drive line turns faster than the engine does. Unless maybe he was running a different tire size to throw it off. Planning a manual transmission swap in your Chevy or GM . If you wanted a top speed of 80 mph, then . All non-RS Impreza AWD Automatics are 4.111. The Tribeca with ez-36 (3.6R) used a 3.583 final drive ratio. . Like the Legacy/Outback, the WRX 6MT is of a split-case design similar to the older 5MT and does not share any internal commonality with the WRX STi 6MT. I have an 03 Baja/ manual that needs a differential. Dec 2, 2011. [5] Followers 0. It can vary depending on engine and transmission. 6MT non Turbo. Does the final have something to do with the tire diameter and the axle ratio or what? Impreza JDM transmissions. 2nd 1.888 This is due to the R160 rear differential 3.545 final drive of most of the non-STi WRXs. Again, the overall first-gear ratio with the TH400 and 4.10:1 rear gear would be 10.168:1. Combine these overdrive transmissions with a 4.10 axle ratio and you have a fuel-friendly final drive ratio of 2.87:1 (4.10 x 0.70 = 2.87) in high gear. Vehicle speed in MPH. Menu. Gear Ratios are: 5MT non Turbo. Outback 2.5 NA Gear Ratios: 1st: 3.454, 2nd: 1.947, 3rd: 1.296, 4th: 0.972, 5th: 0.825, 6th: 0.695, Rev. Vernon, Burlington and Oak Harbor #JF1VBAF69N9032472 . Welcome to the Subaru Outback Owners Forum, we have tons of information about your Subaru Outback, from a Subaru Outback Wiki to customer reviews. The Subaru Performance Transmission with automatic downshift blipping control is available to combine the convenience of an automatic with fingertip paddle shifting and an 8-speed manual mode. Please Help lol, it should be a 4.44 bc its a phase II trans and all phase II autos are 4.44 so look 97-05 impreza. A different size tire doesn't throw the speedo off cuz the speed sensors don't see if you're running a shorter / taller tire. Thanks Rallispec! 2nd 2.264 Also solve for RPM, Tire Size and MPH. A guy at the autox today said his hits 59mph in 2nd gear bouncing of the rev limiter. 7204 0 obj <> endobj A local yard has an 03 legacy/auto, and I'm trying to figure out if the differentials match. Popular Tools & Look-Ups. The transmission yokes are CNC machined to assure concentricity and balance for ideal driveshaft operation. In the US, the Lineartronic is available with the 2.5i engine in the Outback, Legacy and Forester(2014), and the 2.0 FB engine in the Impreza and slightly modified for the XV Crosstrek. Does anyone know if the GR86 differential is compatible with the first generation? 5th 0.825 First Gear Ratio (:1) 2.79. JDM Subaru Impreza WRX STi Manual transmission ratio chart , specifications. 1st 3.636 2nd 1.950 3rd 1.344 4th .971 5th .783, Rev 3.583, This was the only five-speed 4WD transmission made for the Subaru Leone. 4th: 0.972 On this Wikipedia the language links are at the top of the page across from the article title. Transmission code: 1st Gear: 2nd Gear: 3rd Gear: 4th Gear: . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 6MT turbo. By clicking Accept, you agree to our website's cookie use. when you need it! Trans Assembly. Legacy 2.5 GT Gear Ratios: 1st: 3.454, 2nd: 1.947, 3rd: 1.296, 4th: 0.972, 5th: 0.780, 6th: 0.666, Rev. A taller 6th would probably have helped the GR's EPA numbers (though I'm averaging low 30s US MPG, so not terrible in the real world). Is this a Subaru thing? It was available in FWD and Full-time awd. Changing to a taller or shorter final drive ratio can customize your overall gear ratios, specific to your application. Rev 2.370. Update 2-2019-I found this useful calculator at SubaruGears. The NEW 6 speed MT (NOT the same 6spd tranny as the LGT SpecB/STI), 3.454/1.947/1.296/.972/.825/.695/ 4.444FD -2010 Outback, Calculators for Speed and RPM, includes tire size and comparison graphing. I don't see Subaru using a completely different gear ratio setup than they have now for the RS .